code: def get_test_data(cls, dtype):
      assert dtype in (np.uint8, np.uint16)
      if dtype == np.uint8:
          return cls.bayered_imgs, cls.npp_baseline
      else:
          return cls.bayered_imgs16t, cls.npp_baseline16t
  
imports: import itertools
  import os
  import unittest
  import numpy
  from nvidia.dali import pipeline_def, fn, types
  from test_utils import get_dali_extra_path
  from nose_utils import assert_raises
  from nose2.tools import params
  from debayer_test_utils import bayer_patterns, blue_position, blue_position2pattern, rgb2bayer, rgb2bayer_seq, debayer_bilinear_npp_pattern, debayer_bilinear_npp_pattern_seq
label_desc: Use image node_id 2 for calling the DebayerTest obj's underlying member method code with example usage: obj.get_test_data(cls, dtype) and returns: cls,  cls, cls,  cls